J1KND Laptop Battery 11.1V 48Wh Compatible with Dell Inspiron N5110 M5040 N5010 N7010 N4110 N7110 N4050 N4010 N5050 N5040 N5030 M5010 M5110 N3010,Vostro 1450 1440 1540 1550 3750 3550 3450 0JXFRP 9T48V

The accuracy of the shipping and speed in which the order was processed

I am very happy with this purchase. Battery works great nd fit perfect! Will order again!

Easy to install

good charge rate

For a new "old new stock" battery, it keeps a charge well just sitting unused. 3 months and only dropped down to 92%. Lasts at least 2.5 hours on a charge.The key to Lithium batteries is to fully charge, then fully discharge to about 10 - 15%, and then fully recharge again. This has always made my batteries last longer than others claim about theirs.

I bought two of these batteries before I finally got a different brand that works perfectly. This battery couldn’t handle the current load of a Core i7 laptop (Dell Inspiron N5110). The laptop would only run a few seconds before suddenly shutting down due to low voltage caused by too much power draw. Batteries shouldn’t have any trouble supplying many amps of power, they’re good at that. Once the power draw exceeded ~4.2 amps, the laptop instantly shut down. Perhaps in other laptops with lower power CPUs (Intel U or Y series), this battery may run fine. But it should have been designed for this laptop! The fact that both batteries failed to power this laptop means at best it’s a bad batch, or at worse none of these batteries can handle higher powered laptops.

Does what is designed to do. Fits exactly as directed.

Shipping was much faster than originally promised. Super easy to install and charge the battery up!